I found out the following:
- int_features should be an array of length 512,
- num_features tells us how many features are really in int_features
- FeatureOutlineIndex holds the index of the corresponding outline for
each feature in int_features
TESS_API TBLOB*
TESS_CALL TessMakeTBLOB(Pix* pix);
will give us the TBLOB* needed for TessBaseAPIGetFeaturesForBlob(). If you
want to get the Pix* for every symbol, simply call
TessPageIteratorGetImage() or TessPageIteratorGetBinaryImage() while
iterating over the symbols.
Now I still need to know how to get the features for prototypes...
Am Samstag, 5. Juli 2014 14:37:20 UTC+2 schrieb Paul:
>
> Hello everyone,
>
> I am trying to get a symbol's features by using the C API so I can create
> additional ways for debugging Tesseract.
>
> Can anybody provide me with an example on how to use the following method?
>
> TESS_API void TESS_CALL TessBaseAPIGetFeaturesForBlob(TessBaseAPI* handle
> , TBLOB* blob, INT_FEATURE_STRUCT* int_features,
> int* num_features,
> int* FeatureOutlineIndex);
>
> As far as I understand it, I need to provide an INT_FEATURE_STRUCT that
> will hold the resulting features of the symbol after calling the method, as
> well as an int*, which will hold the number of features. What goes in
> FeatureOutlineIndex and which TBLOB* do I have to provide? How to I get
> it?
>
> Or is there another method that can give me the features of a symbol?
>
> Best regards,
> Paul
>
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